two ways here I provide:
use openSSH command line on git bash(such as msysgit bash)
use some git-gui tools, such as Putty or msysgit,or github For Windows(only support Windows Vista, 7, 8, & 8.1)
refer to : http://guides.beanstalkapp.com/version-control/git-on-windows.html
refer to : https://help.github.com/articles/generating-ssh-keys
Generating SSH Keys on windows,布布扣,bubuko.com
Generating SSH Keys on windows
原文地址:http://www.cnblogs.com/phpgcs/p/Generating-SSH-Keys-on-windows.html